For the record, according to A Guide to Middle-Earth
by Robert Foster, Radagast is mentioned (and I have checked and confirmed):
- On pages 336-337, 342, and 359 of The Fellowship of the Ring (1970's Ballantine edition)
- On page 121 of The Hobbit (again, 1970's Ballantine edition)
Though assuredly a minor character, a far cry from only mention on one line.
Any word of the Blue Wizards being in the film?
The latest episode of Corey Olsen (The Tolkien Professor)'s "Riddles in the Dark" podcast has an extended discussion of Radagast and the Blue Wizards. In addition to the mentions above, Radagast is also mentioned in Unfinished Tales
and The Peoples of Middle-Earth
, and Olsen discusses those mentions as well.
An appearance by the Blue Wizards Alatar and Palandro would certainly be unexpected, but it's also unlikely. I don't believe they're mentioned in The Hobbit
or The Lord of the Rings
, and that would put them beyond what Jackson has the rights for. (The Lord of the Rings Wiki
gives page references in LotR
to mentions of the Blue Wizards, but all those references mention are that there are five wizards, not that they are blue, and certainly not their names.)